Window-screen.



NO MODEL.

PATENTED NOV. 3, 1903, J. PASTALL.

WINDOW SCREEN.

APPLIATION FILED JULY 14, 1903.

l 2 SHEETS-SHEET 1.

Tn: Nonms Peters co. vnorauwo.. WASHINGTON. o c

N. 743,324. PATENTED Nov. a, 190s. J. PASTALL.

WINDOW SCREEN. D

APPLICATION FILED JULY 14, 1903.

ND MODEL. 2 SHEETS-SHEET 2.

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without.

UNITED STATES atented November 19035;

JosEPI-I PASTALLE, oF PATERsoN, NEW JERSEY.

WINDOW-SCREEN.

srEcIEIdATI'oN forming part of Letters Patent No. 743,324, dated november 3, 1903.

` Application filed July 14, 190s. serial No. 165,437. (No model.)

To a/ZZ whom t may concern:

Be it known that LJOSEPH PAsTALL,a citi- Zen of the United States, residing at Paterson, in the collnty of Passaic and State of New Jersey, have invented certain new and useful Ilnprovements in Window-Screens, of which the following is a specification, reference being vhad therein to the accompanying drawings.

My invention relates to improvements in window-screens which may be adjusted to lit windows varying in size.

The principal object, however, of my i11- vention is to provide a screen for windows, doors, and the like which will permit flies, mosquitos, or other insects to make their exit from the house through the screen, but prevent the entrance of any such insects from I attain these objects by a screen of the'construction illustrated in the accompanying drawings, in which- Figure 1 is an elevation of a part of a window-screen, showing the side facing the room; Fig. 2, a vertical section on theline A A, Fig. 1; Fig. 3, an elevation showing the outside of my screen secured in a window, and Fig. 4 a vertical section of the same on the line B B, Fig. 8.

Similar figures refer to similar parts throughout the several views.

'In the drawings the parts 1, 2, and 3, which are stationary, together with the extension or sliding adjustable part 4, constitute the framework of my screen. A recess 'or space 6 is formed in the upper and lower portions 2 and 3 of the screen-frame, through which the wire hook 7, surrounded with a compression-spring 8, passes and in which the arms or guiding-pieces 5 of the part 4: are adapted to slide to reduce the size of the screen to fit the window.

My screen proper consists of a plurality of screens or screen sections 9, which overlap ing or overlapping portion of the screen-section above. v

By referring to Figs. 1 and 2 of the drawings it will be seen that the upper portion 9 of each screen -section 9 is secured to a rod 11 and that the ends of the rod 11 are secured to the rear portion of the blocks 12 12, which are oppositely located in the sides 1 1 of the screen-frame. The sides 1 1 of the screenframe are provided with openings 13, through which the blocks 12 are moved to cause the upper movable portion 9 to assume a vertical position, as shown by the lowermost screen-section 9 in Fig. 2, or to be deilected and drawn into contact with the overlapping portion 9b of an upper screen-section 9, as shown in the two upper screen sections in When the movable or upper portion 9 is maintained in a vertical position, as shown in the lower portion of Fig. 2, afiy lighting upon the lower screen-section 9 may walk up said screen-section over the portion 9' and over the rod 11 to the open air, because the middle screen section 9 is deflected or bent almost at right angles from the rear wall to the front wall of the frame 1 and passes thence down the inside of the front wall of the frame 1, to which it is secured below the movable portion 9a, which it overlaps, leaving means of exit between the lower portion 9b of the middle screen-section 9 of the upper portion 9 of the lower screen-section 9.

A person would naturally think and in quire why a iiy or mosquito cannot go in as easily as it could make its exit, and my only vanswer is: They dont do it. I have given much time to the study of the habits, so to speak, of the fly, mosquito, and other insects and have practically tested my screen with all the exits open between the screen-sections 9 and found the result to be without exception that the ilies, mosquitos, or other insects inside the room would make their exit through the free open passages between the screensections 9; but although a strong light was burning in the room which attracted varieties of insects and flies and mosquitos in numbers tothe sides of my screens, nevertheless not one would enter, although my screen-sections IOO were separatedby passage-ways. (Shown in the accompanying drawings.) I have, however, provided a way to close the exits and satisfy the incredulous. The blocks 12 are provided with ahandle l5 anda locking device 14. The locking device is adapted to enter a slot l2 in the block l2 when the block is pulled inwardly or toward the room, and the upper or movable portion 9 is thus held in contact with the lower portion 9b of the screensections above, thus closing the passage-way between the adjoining screen-sections, as shown in the middle and upper portions of Fig. 2.

If there are iiies in the room and it is desired to drive them out, the blocks l2 may be pushed in, thus opening1 a passage-way be'- tween the screen-sections, and by driving the flies to the window-screens they will invariably walk up over the screen-section. They light on and pass out between the screen-sections. If it is then desired to close the passage-way, the blocks may be pulled in and secured by the locking device 1.4, as shown in the upper portion of Fig. 2. it is not necessary to do so, as the iiies will not come in that passage between the screensections; but as constructed and. shown in the drawings my screen can be used with the passage-ways either open or closed, as desired.

The two upper arrows in Fig. 4 point to closed passage-ways between the screen-sections, and the lower arrow shows the open exit between the screen-sections.

The locking device llis adapted to lock As before stated,

the block l2 in position, as shown in the drawf With this description of my invention what I claim, and desire to secure by Letters Patent, is-

The combination with the frame, carrying a plurality of wire screen-sections arranged in said frame with the backs of said screensections in alinement or flush, the lower portion of each upper section being bent forward substantially at right angles, a short distance above the iop portion of the screen-section beneath, and being bent again at right angles so as to pass down in front of and overlap the top portion of the screen-section beneath, thus forming an openin g or passage-way between the screen-sections, of such screen-sections, the lower portion of each section being stationary and the upper portion of each section being movable to andfrom the o verlappin g lower portion of the screen-section above, to open or close the passages between the screensections, and means for locking the movable upper portion of each screen-section away from, or in contact with, said lower overlapping portions oi' the screen-sections above substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JosPi-I PAsTALL.

Witnesses:

MINNIE L. DILL, JOHN F. KERR. 

